UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1xO1WDa+HmVKazJLGvMnfuMrhTTAWOLhqPKzWjsssZY=' 
WHERE 
  key_id = '3259f8501e70ad2c8e296e9fa6f874f84700c31e77bd29dbd5a41c9506fdd4b4' 
  AND (
    token = '1xO1WDa+HmVKazJLGvMnfuMrhTTAWOLhqPKzWjsssZY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )